Последние добавленные видео:
Copper-(Chemical-Element)
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4 years ago
769 4 years ago 1:01Periodic table of elements - Copper
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14 years ago
883578 14 years ago 8:13Copper - Periodic Table of Videos
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16 years ago
63559 16 years ago 3:08Copper (version 1) - Periodic Table of Videos
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13 years ago
24385 13 years ago 6:11Copper ***
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12 years ago
21622 12 years ago 4:30Elements: Copper
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3 years ago
43 3 years ago 2:27Copper - Chemical Element
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2 days ago
588 2 days ago 12:0612th Elements name in English with symbols and atomic numbers | 80 तत्त्वों के नाम अंग्रेजी में
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10 years ago
344598 10 years ago 4:32Purifying Copper | Reactions | Chemistry | FuseSchool
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4 years ago
115 4 years ago 22:08SSW20: Periodic Table/Copper Chemistry
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11 years ago
124 11 years ago 1:43Chemwiki Elemental Minute: Copper (Chemical Properties)
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3 years ago
6599 3 years ago 8:07All the facts about the element Copper Cu. The coloured wonder.
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10 years ago
53604 10 years ago 4:20Reactions Of Copper | Reactions | Chemistry | FuseSchool